[PATCH v2] x86: reject further invalid AVX-512 masking constructs

[H.J. Lu]

On Thu, Nov 23, 2017 at 2:09 AM, Jan Beulich <JBeulich@suse.com> wrote:
> For one the register type used for masking should be validated. And then
> we shouldn't accept input producing encodings which will #UD when
> executed, as is the case when EVEX.Z is set while EVEX.AAA is zero.
>
> gas/
> 2017-11-23  Jan Beulich  <jbeulich@suse.com>
>
>         * config/tc-i386.c (check_VecOperations): Check register type
>         for masking. Quote the actual register name in the respective
>         diagnostic. Check {z} wasn't specified on its own.
>         * testsuite/gas/i386/inval-avx512f.s,
>         testsuite/gas/i386/x86-64-inval-avx512f.s: Add further bad
>         masking tests.
>         * testsuite/gas/i386/inval-avx512f.l,
>         testsuite/gas/i386/x86-64-inval-avx512f.l: Adjust expectations.

This is OK.

Thanks.

-- 
H.J.